// 随机文件名
export function randomFileName() {
	var d = new Date().getTime()
	return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
		var r = (d + Math.random() * 16) % 16 | 0
		d = Math.floor(d / 16)
		return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16)
	})
}

// 获取文件后缀
export function getFileType(filePath) {
	var startIndex = filePath.lastIndexOf('.')
	if (startIndex !== -1) {
		return filePath.substring(startIndex + 1, filePath.length).toLowerCase()
	} else {
		return ''
	}
}